Apparatus for controlling the passage of trains.



No. 888,289. PATENTED MAY 12, 1908.

J. D. TAYLOR.

APPARATUS FOR CONTROLLING THE PASSAGE OF TRAINS.

APPLICATION FILED OUT. 26, 1904.

4 SHEETS-SHEET l.

f //5 l I 85 Q a H 8 a 8 L .J V59 89 fla No. 887,289. PATENTED MAY 12, 1908.

- J. D. TAYLOR.

APPARATUS FOR CONTROLLING THE PASSAGE OF TRAINS.

PPLIOATIOH FILE 2 04. A D OUT 19 4 SHEETS-SHEET 2.

fig f V/TAQS'ES; L VV/i/VTOR.

. Cg 2 My A PATENTED MAY 12, 1908.

7 J. D. TAYLOR. APPARATUS FOR CONTROLLING THE PASSAGE 0F TRAINS..

4 SHEETS-SHEET 3.

APPLICATION FILED OUT. 26, 1904.

Ill-

l l l l PATENTED MAY 12, 1908. J. D. TAYLOR.

APPARATUS FOR CONTROLLING THE PASSAGE OP TRAINS.

APPLICATION FILED OCT. 26, 1904.

Y 4 SHEETS-SHEET 4.

NQN M 5 ME 1 O 5 3 3 Q nw 0 NWN SN Ni UNITED STATES PATENT OFFICE- JOHN D. TAYLOR, OF WILKINSBU'RG, PENNSYLVANIA, ASSIGNOBQTO UNION SWITCH I AND SIGNAL COMPANY, OF SWISS'VALE, PENNSYLVANIA, A CORPORATION OF PENNSYL-.

VANIA.

APPARATUS iron CONTROLLING THE PASSAGE or TRAINS.

Patented May '12, 1908.

Application filed October 2.6, 1904; Serial No; 230,039.

To all whom it may concern: I

tain new and useful Improvements in Apparatus for Controlling the Passage of Trams, of which the following is a s ecification.

My invention relates to t at class of ap--' paratus comprising a part or appliance for controlling the passage of trains along a railwhich the invention relates is railway switching apparatus in which electricity is the motive orce.

Two objects of my invention are one, to

afiord additional safeguardsagainst false in dications occurringon account of the indication wire of one switch operating motor being crossed with that of another switch operating motor, and two, to provide means for preventing improper movements of switch rails by their operating motors which would result from crossed wires including such motors, while permitting the operating wire to remain in connection with'the battery in the cabin or tower.

' and 5 are views of a safety apparatus or' I will describe a railwayswitching apparatus embodying my invention and then point out the novel features thereof in claims.

This invention may conveniently be used in connection with the method of operation and control described in my application filed A ril 18th, 1904, Serial No. 203,645. I

n the accompanying drawings, Figure 1 is a vertical sectional view of an indication mechanism or apparatus for a controlling lever embodying my invention. Fig. 2 is an ele vation thereof, and in a plane at right angles to the plane of section of. Fig. ,1. Figs. 3, 4

mechanism employed in connection with the operating wires embodying my invention. Figs. 6 and 7 are diagrammatical views of circuits. and apparatus which may be em ployed in carrymg out my invention.

Similar letters of reference designate corresponding parts in all of the figures.

Referring now to Figs. 1 and 2, which illustrate a mechanism or apparatus by means of which I may attain the first mentioned object, 76 designates oneof a number of lever shafts of an interlocking machine which is capable of a rotational orv oscillatory movement upon a movement of a controlling-lebe further described; Each lever and shaft is locked against final movement in either direction by means of. a mechanical lock which, as shown, comprises a notched segment 77 attached to the shaft 76 and having shoulders 78 and 79 and a. latch 3, which engrages with the shoulders. The latch 3 is ee only to slide vertically in a fixed guide 83. The latch 3 is forced by mechanical means, which may comprise a projection 80 on the segment 77 and a part 82 formed on the latch 3, into a position to enga e with either of the shoulders 78 and 79. T e pur-x pose of locking the levers against final movement in either direction is also Well known in the art and will not be described.

The, mechanism for releasing the lever when the position of the'switch rail has been indicated, as here shown com rises electromagnets 7 and 8 preferably 0 the solenoid type. 5 for the magnet 7 are connected to the latch 3 by means of a rod 4. The coils of the magnets 7 and 8 are wound on brass or other nonmagnetic tubes 7 a and 8 which are suported in a frame 85. The frame 85 should e of magnetic material, cast steel preferably. The part 86 and the rod 90 which latter joins or connects the two cores 6 and 88 should be of non-magnetic material such as brass. The

Their cores 6 and 88 and an armature cores 6 and'88 slide freely in the brass tubes are the same, each comprising an inner coil' 7 8*" having few-turns of large wire and an outer coil 7 8 having allarge number of turns of small wire. The two inner coils are joined in. series with each other, and thetwo outer coilsare likewise joined in series one to the other. The switch motor operating current flows through the two inner coils during the movement of the switch rails and the generation of the indication current. The

outer coils are energized by a current from the battery during the movement .of the switch rails and by current from the generator end of'the switch operating motor during indication, the latter or indicating current being opposite in direction to the former or operating current. The windings and connections of the coils are such that the magnetizing effects of'the current in the outer and inner coils of one magnet are added toassess gether while at the same time the magnetizing efiects of the current in the outer and inner'coils of the other magnet are in opposition. To be more explicit; while the switch is being operated in response to amovement of its lever two circuits are closed. The operating current flows through one circuit includin the two inner coils and a current from t e' battery flows through the other or second circuit which includes the two outer coils. These two currentsfiow in such direction that their efiects are united in the magnet 8' and in opposition in the magnet 7. The resistances 1n;the two circuits ,and the 5 number of turns in the inner and outer coils are so roportioned that the effects of thetwo cosin magnet 7 nearly, if not quite, balance and neutralize each other.

the indication-current is being generated the motor operating current flows through the inner code in the same direction as it does while the switch'is' being operated but the indication current flows through the outer coils in a direction opposite to that of the .battery current previously flowing through them so thatthe effect is to energize the magnet 7 and neutralize the magnet 8. This is all clearly set forth in my application above referred to. 3c The movement of the lever to a osition to establish the circuits above mentioned puts the segment 77 into a position to permit the latch 3 to rest in the notch between the shoulders 78 and.79, in fact the movement of the lever to the said position forces the latch 3 into the notch by means of the projection 80 where it is held by the spring 84. The latch 3 dropping into, the-notch in 7 7 forces the end of the armature 5 upwardly and away from the core 6. Whenthe currents first above named flow through the coils of the magnets, neutralizing magnet 7 and 811- ergizing magnet 8, the core 88 will be lifted and through-the brass rod 90 connecting it with the core '6 the latter will be pushed up into contact with the armature 5. If'in thls osition the current in. the outer coils should ie out, the cores will be held in the position above named by the current in the inner coils because there is a com lete iron ma etic circuit around the coils o magnet 8 wh1 e the magnetic circuit around .the coils of the magnet 7 is broken by a large air gap which "is be tween the end of the core 6 and frame 85.. When the current in the-outer coils changes x direction and becomes strongrenough to neu-.

tralize magnet '8; magnet 7 will befstrongly energized and will'draw down its core 6 and with it the armature 5, the latter due to the.

magnetic attraction between the core 6 and armature 5, the magnetic circuit around the coils of ma net 7 being through core 6, arms)- ture 5 an frame 85. The attraction be tween the armature 5and the core 6 will be ts greater than the pull of the coils on 6 on ac- While count of the greater intensity of the flux from the armature 5 to the core 6 due to the reduced area of contact between them. The upper end of the core 6 is rounded for the double urpose of accommodating itself to the motion of the armature 5, and for reducing the area of contact between them. The armature 5 is pivoted to the frame 85so that drawing down the end in contact with the core 6 will elevate the end connected to the latch 3 by the rod 4 and will thus liftthe latch 3 out of the notch in 77 and permit-the lever to make its final vmovement. It will thus be seen thatthe process of indication requires two movements; the first placing the apparatus in a position to indicate by means of battery currents through both operating wires in circuit with'which the two series of coils are placed respectively; the second requiring a movement the op osite direction produced by battery current in the inner coils and the indication current'from the motor generator in the outer coils. The purpose of this will be further explained in connection with the diagrams Fi s. 6 and 7.

A preferred form of ap aratus or preventing alse movements 0 switch rails from crossed wires is shown in Figs. 3, 4 and 5. This piece of apparatus also performs the function of opening the operating circuit 95. after the indication has been received, and the lever has made its final movement. It comprises magnets 28 and 29, preferably of the solenoid type, supported on pivoted arms which permit of Ion ltudinal movements of the magnets. Brus cs 30 .and 31 are for leading current into and out of the'energizin coil of magnet 28 through terminals 194 an 19 5; which are connected to the ends of the col rent into and out of the magnet 29 by way of terminals 196 and 197. The brushes 30, 31, 32 and 33 and their terminals constitute circuit controllers and they are included in the o erating circuits of the motor as will herein- 110 a ter appear. -A circuit controller 0 erated by theme nets 28v and 29 preferab yv comprises'brus esg5, 94, 36, 95 and a movable contact piece 4 which may make contact with the pair of brushes 35 and 94 or with the X115 pair 36 and 95. The contact piece 34 iscarried by an arm 96 pivoted to'a frame .183 and adapted toengage at its lower end the cores 97 01*98 for the'purpose of shifting the contact 34 from one of the said pairs of brushes 120 to theother. The contact 34 together with the two airs of brushes with which it may contact, orms a circuit controller for breaking the driving circuitof the d namotor at the end of a movement of a 'switc jrail or rails, 125 and after the indication mechanism has been operated and the'lever' moved to its finalpositiom, If, with the apparatus as shown in Figs-r3 and 4, the-magnet 28 is energized, the

Brushes 32 and 33 are for leading cur- 1e5- sea ace which is connected to 97 by a link 99 will be Withdrawn from the magnet 29. After the cores have moved a short distance the end of the core 98 will strike the lower end of an arm 96, and the core during the remainder of its stroke will move the contact 34'from the. pair of brushes 35, "94, to the pair of brushes 36, 95. -During this movement the magnet 28 has been locked against movement by the latch 100. Near the end. of the movement of the core 98, the latch 100 will be shifted by the pin 101 carried by the core 98 so as to lock themagnet 29 preparatory to the return movement. Ifthe magnet 29 was also energized the core 98 could not 'bewithdrawn therefrom so that the magnet 29 itself would have to move in response to the pull of the core 97 and it would take the position shown in Fig. 5. Inthis position the brushes 32 and 33 would no longer make-contact with the terminals 196 and 197. Current would therefore stop flowing in the coil of magnet 29 and in everything else that was in series with .it.

With this preliminary description of the apparatus eculiar to this invention, I can now refer to i s. 6 and 7 the more fully to set 'forth the invention: Figs. 6 and 7are diagrammati'c views of an arrangement of cir' cuits and parts controlling them and operated thereby.

For further details of apparatus not herein specifically described reference maybe had to the application hereinbeiore referred to.

Each switch operating motor is provided with two independent armature windings, each having a commutator and a 'air of brushes. Both of these coils are use in series for driving the motor during the movement of the switch rails. After the switch railshave been moved and locked, the circuit is changed so .that the operating current flows through only one of the said windings while the other is used for generating the indication current. In other words, a motor and motor generator are employed and combined in one machine which I have termed a dynamotor. The motor is :also provided with two fieldcoils for the purpose of reversing the direction of rotation of the armature. One of these coils only is used when the switch is to be moved in one-direction, while the other is used when the switch is to be moved in the opposite direction. This is all clearly set forth in the application above referred to.

To each armature shaft of a motor for-ope crating the apparatus connected with a switch rail or rails, forexample switch rails 180, is one part 26 of a two part magnetic clutch. The second'par't 27.0f the clutch is fixed to the frame of theswitch and .lock

movement. Between the parts 26 and 27 is an armature capable of being engaged with or by either part of the'clutch. The same armature'is keyed to-the screw 45 or other operating or equivalent part of the switch and lock movement in such manner as to have lateral movement enough to permit its engagement by either part 26 or 'As the part 26 rotates, the terminals of the energizmg coil thereof are connected with rings on which collector brushes 24 and 25'bear. The

energizing coil of the part 27 is included in a circuit to be hereinafter described.

In Fig. 6 the levers'2 and 102 are shown in the position they would have when .moved toward the normal.position until stopped by the latches 3 and 163. The switch'180 is just commencing the movement towards normal position and the switch 181 has just completed the normal movement and is ready to indicate. The operating circuit for the normal movement of switch 180 is wires 74, 176, 179 back to battery 1. This current causes themotor armature to rotate and the clutch 26 to engage its armature and thereby transmit motion to the switch and look movement-through thescrew 45. The operating current flowing through the ma net 28 has no effect other than to tend to he (1 the contact arm 34 in contact with 35 as shown, where it has been put by the previous movement.

When the bar 47 has been moved far enough to put the contact 38 into connection with the contact 41 (see Fig. 7), another circuit is established so that current flows from the battery 1 through wire 48, outer coils of magnet 7, wire 53, outer coils of magnet 8,

wires 54, 56, contacts .14, 10, 93, wire 60,

"field coil 18, wire 61', contacts 39, 38,, 41,

wire'63, brush 33, magnet 29, brush 32,

wires 68, 69, where it joins the operating current, thence throughthe clutch 26 before de- 1 scribed,-and motor armature, and the wires 74, 1'76, 179 back to battery 1. This last named current flowing in the outer coils of 7 and '8 in conjunction with the operating current flowing 1n the inner coils of said magnet acts to energize the magnet 8 and neutralize the magnet 7, so that thecore 6 is pushed out against the armature 5. The current last named flows through the magnet 29,but is too light to havea'ny efl'ect on the apparatus of which the magnet29 is part because of the resistance of the outer coils of magnets 7 and 8.

As the circuits of all switches are alike, I will describe the circuits for developing the sense fi start to move the said switch 181 to the revel-set position. When the bar 147 has moved far enou hto put the contact 137 in connection. wi h the contact 142, which occurs before the loci; bolt has been withdrawn from the lock rod, another circuit 'is established so that current flows fron battery 1 through wire 148, inner'coils of mag? nets 107,108, wires 150, 151 contacts 112, 111, 192, wire 159, field coil 119, wire 162,

contacts 140, 137, 1412, wire 164, brush 131,.

magnet 128, brush 139, wires 167, 169, where it joins the previously named current passing through the clutch 126, the 3.5 switch operating motor armature, and wires 174, 176, 179 back to battery 1. This last named current energizes the magnet 128, while the magnet 129 is energized by the current coming through the cross connec- 26 tion KY. As the magnet 128 is iocked by the latch 100, magnet 129 will be drawn into the position occupied by the magnet 29 shown in Fig. 5, thus separating the brushes 132 and 133 from the terminals of the magnet 129, and breaking the circuit through which current reached the operating motor from. the crossconnection XY. ihe circuit iast named above remains unbroken and the switch 181 isthereby restored to the so norrnai position. Ctrrrent wiii continue to flow through the cross connections as long as i the wire 59 remains charged h'oin the battery 1, through KY, wire 166, contacts 193, 119, 116, wires 1'70, 158, indicator 191, and wire 1'78 back to the battery 1. The indicator thusshows the existence of a cross betweeh the operating wire 166 and some other wire. Each indicator serves for both positions of the iever. As ail the operating wires shouid be provided with fuses and the circuit last described through the indicator is of iow resistance, the fuse in the wire 59 would be fused and thus indicate the other wire crossed. The fuse should be shunted as by a resistance so that enough current will.

continue to flow through the cross to keep the indicator energizednhtii it can be discovered and the troubie io'cated. The magnet 129 wiii have to be replaced by hand so which should not be done however until the trouble is iocated andrernoved.

in Fig. 6 the dotted iine i/ VT represents an accidentai cross connection between two wires, one of which, 169, is the indicating wire of a switch just the act of indicating,

and the other, '69, the indicating wire of a switch just commencing to more. As the first series of coiis oi the motor of swi tch 181 are generating, current which flows back so through wire 169, and the outer coiis of magnets 107, 198 it wiii aiso flow through the cross connections VW and the outer coils of magnets 7 and 8 to the common connection 18 and 148, which joins the two sets of coils.

cs it flows in such direction through the outer oration of the motor.

coils of magnets 7 and 8 that cc-acting with the current operating the switch 1.89 and flowing through the inner coils of magnets Z and 8 1t energizes the'rnagnet 7 and neutraiizes the magnet 8, so that it simply tends to My hold the core 6 in the position shown, without any effect on the armature 5 because the air ap between the core 6 and the armature 5 is 00 great.

When the switch 186'inoves far enough to put the contact 38 into connection with the. contact 41, the wire 69 isconnectedthrough the iield coil. 18, wire 61, contacts 39, 38,41, wire 63, brush 33, magnets 29, brush 32, and Wire 68 to the noint to which the wire 59 is an connected. as the potentiaifaiis irorn the battery to the operating motor oi switch .186 and as theresistance of the wire 66 is Very srnaii, it wiii be evident that the potentiai at the point W cannot rise high enough to. cause as current to flow back through the outncoiis of magnets 7 and 8 towards the positive poie oi the battery.

While '1 have described my invention in connection with an apparatus for moving so switch rails, i do not wish to he so iirnited as to the broad invention forth in. the claims, as my invention is equaiiy appiicabie to raiiway signais'which are operated by ejieotric motor, and a iever for controliing the op- The signs-ii. device of a raiiway signai controls the of trains equaiiy as much or neariy so as does a switch raii or rails. v

i ihat i. ciaiin as my wention is:

1.' in an indication mechanism. i o a controiiing ieyer of an .interiociring niaci e, the, combination of a inechanicai vtech, a ir of magnets haying movable cores for operating the lock, one of said magnets being adapted res to arrange the lock ready to reieased and the other oi'said magnets being adapted to reicase the lock. i

2. in an indication. mechanism for a controiiing lever oi an inter-inching machine, the '1 1o combination. oia niechanicai ioch; for the icver, eiectro-magnetic means "for arranging the iock ready to be reieas ed, and eiectromagnetic means iorreieasing the ioch.

3. An indication mechanism. for a controh ion iing iever of an interioching machine, comprising a mechanicai lock for the lever, eiectro-rnagnetic means for reieasing the inch, and circuits in which the eiectro-magnetic 7 means are inciuded; said eiectro-inag'netic 12o means being energized by current in two of said circuits for arranging the ioch ready to he released and being energized by current in one of said two circuits and in a third circuit for reieasing the lock.

1. in anindication mechanism tor a controlling lever of an interlocking machine, comprising a mechanicai iock for the iever, eiectro-inagnetic means for reieasing the loch, a source of electric current, a switch 13c operatin motor having two armature windmgs, an magnetic means being energized through two; of said circuits by current from said source for arranging the lock ready to be released, and-being energized from'said source through one of said two circuits and from one'of' said armature windings through a third circuit for releasing the lock.

which comprises two magnets, a core for each magnet and a connection between the two cores, said magnets being so arranged that one when'energized will move its core and therebyplace the lock in position to be released, and the other when energized will move its core to release the lock. V

7. An indication mechanism for a'controlling lever of an interlocking machine, comprisin a latch and electro-magnetic means or re easing said latch; said electro-magnetic means requiring current, first from the battery through two circuits to put it in condition to indicate, afterwards requirin current from the battery through one 0 said "first from one source to circuits and current from the switch operat ing motor through the other of said circuits to effect the indication. 1

8. An indication mechanism for a controlling iever of an interlocking machine, comprising a mechanical lock and electro-magnetic means for releasing said lock; said electro-magnetic means requiring current,

ut the lock in condition to be released an afterwards requiring current from the same source and current from a different source to effect the release of the lock.

. 9. An indication mechanism for a cont'ro'l ling lever .01 an interlocking machine having in combination a mechanical lock, and electro-magnetic means comprising two magnets, two movable cores and an armature; said electro-magnetic, means reguiring current from one source to put the dition to be released, and current from the same source and current from a different source to efi'ect a release of the lock.

10. An indication mechanism for a controlling lever of an interlocking machine having in combinationa mechanical lock and electro-magnetic means; said electro-magnetic means comprising an armature con-' two electric circuits; said electrorelease of the ock in con-- nected with the mechanical lock and two magnets each having two windings; said windings beingso arranged that when current traverses them from one source the armature will be moved to put the lock in condition for release, and when one winding is traversed by current from the same source and the other winding is traversed by current from another and different source the armature will be moved to release the lock.

11. Anindication mechanism for a controlling lever of an interlocking machine having in combination a mechanical lock and electro-magnetic means; said electro-magnetic means com rising two magnets, two movable cores an an armature, and requiring two currents inthe same directionto put the lock in condition to be released, and two currents in opposite directions to effect the ock.

12. The combination of an apparatus for moving switch rails comprising an electric motor, two sources of electric current, 'a controlling lever, circuits extending between the lever andmotor and controlled by the movement of the lever, (said circuits comprising three wires), an indication'mechanism comprising a lock and electro-mechanical means, said electro-mechamcal means comprismg two magnets each having two windings neluded in said circuits, said windings being so, arran ed-that when both are traversed b current rom one of said sources, the lock wi 1 be set to a position to be released, and, when one winding is traversed by current from one of said sources and the other winding by current from the other of said sources the lock will be released.

'13. The combination with an" apparatus for moving switch rails, comprising an electric motor, said ap aratus being arranged to suppl current a ter an operation of the swltc ralls; a source of current for o erating the motor; a controlling lever; clrcuits extending between the lever and motor and controlled by the movement of the lever,

(said circuits comprising three wires); and

anindication mechanism for the lever comprising .a mechanical lock and electromechanical means, said electro-mechanical means comprisin two magnets each having two windings inc uded in said circuits, said windings being so arranged that when both are traversed by current from said source the lock will be set'to a position to be released, and when one winding is traversed by current from said source and the other winding is traversed b current fromthe apv .paratus the lock will e released.

14. The combination. with an apparatus for movin switch rails comprising a dynamotor w ich acts at one time solely as a motor and at another time as a motor generator, a source of current for operating'the motor, a controlhng lever, circuits extending es'mae I by the movement of the lever, (said circuits comprising three wires), an indication mechanlsm for the lever comprising a mechamcal lock and electro-mechamcal means, said electro-mechanical means comprises two magnets each having two windings included in said circuits, said windings being so ar-.

ranged that when. one is traversed by current from said source and the other is traversed by current from the dynamotor the lock will be released,

15. In an ap aratus for controlling the movements of ve 'cles on a railway the combination with a switch, operating motor and operating circuits, of a circuit controller and e ectro-magnetic means for, operating the same, said controller acting to 0 en an operating circuit when im roperly c arged Without disturbing any 0t er circuit.

16. In an apparatus for controlling the movements of vehicles on a railway the combination of a switch operating motor, mech- 'anism connecting said motor with switch rails, operating circuits, a circuit controlleractuated by said mechanism, a manually operated circuit controller and. an electro-- magnetically actuated circuit controller, the said electrounagnetically actuated circuit controller operating to bpen an operating circuit when the said circuit is improperly charged by contact with another circuit Without disturbing any other circuit.

17. A safety apparatus for electrically operated railway switching or signaling apparatus, comprising two electro-magnets, a circuit controller in circuit Witheach magnet, and means actuated by said ma ets for opening either circuit controller when both magnets are energized.

' 18. A safety apparatus, for systems of control :i'orrailway switching-or signaling apv paratus which, include electric motors, comprising tWo electromagnets,. the coils of which are in series with the motor in the operating circuits of the motor and are energized by current flowing [in the operating circuits of the motor, and means operated by either elec'tro magnet for opening an operating circuit on the motor when the other maghet is improperly energized by current flowing through a cross between its operating circuit and some extraneous source.

19. A safety apparatus for systemsv of control for railway switching or signaling appar'atus which include electric motors, comprising two el'ectro-magnets, the coil of one electro magnet being in series with one optro-magnets'is improperly energized by current flowing through a cross between its operating circuit and some extraneous source.

.20. A safety apparatus, for systems of control for railway switching or-signaling apparatus which include electric motors, comprising two electro-magnets the coils of which are in series through circuit controllers with the operating circuits of an electric motor, movable cores for said electro-magnets which are joined together, and means fofpermitting of a relatlve movement between the electrormagnets whereby either of the circuit controllers will be operated to open either'of the operating circuts. I

'21. In an electrically operated railway switching or signaling apparatus comprising an electric motor and two operating circuits, the combination of a safety ap aratps and a circuit controller; the saidcom inatlon comprising two electro-magnets, one in-each operating circuit, twov circuit breakers, one 1n each operating circuit, means actuated by either magnet for operating. the said circuit controller, and means actuated by both mag,

nets conjointly for opening either of said circuit breakers. I

22. In combination with an apparatus for moving switch rails comprising an electric motor, a source of current for said motor, a controlling lever, circuit controllers operated by the, lever and apparatus, two operatin circuits for the motor which include the sai circuit controllers, an 'electro magnetically operated circuit controller comprising two coils one of which is included in one operating circuit and the other in the second operating circuit, said electro-magnetically operatedcircuit closer bein ada ted to open a circuit\0n the motor ater the switch rails have been moved and an indication given, and the indication mechanism.

23. in combination with an apparatus for moving switch rails which comprises a motor convertible into a dynamotor by. a change of circuits, a source or current for the same, a

controlling lever,*- operating and indication circuits extending between the ap aratus and lever, a circuit controller operated by the lever for closing the operating circuits and the indication circuits, a circuit controller operated by the apparatus for converting the motor into a dynamotor, and an electro magnetically operated circuit controller comprising two electro-magnets one of which is in cluded in one operating circuit and the other in theother operating circuit of the motor, and a circuit controller operated by said. magnets for o suing the circuit on the dyua motor after t e lever has loeen moved to its final position,

2a. in combination with an apparatus for moving switch rails which comprises a motor convertible into a dynamotor by a change of one of which is included in one o'perat-' circuit controller actuated by sai circuits, a source of current for the same, a

controlling lever,'foperating and indication and the indication circuits, arcircuit controller operated by the apparatus for converting the motor into a dynamotonvand an electro magnetically operated circuit controller comprising two electro-magnets ing circuit and. the other in the other op-v crating circuit of the motor, said electromagnets being'arranged in the operating circuits'and controlling means to open an operating circuit of'the motor when either of the operating circuits is improperly energized, and a circuit controller operated .by said magnets for opening the circuit on the dynamotor after the lever has been moved to its final position. I v

- 25-. In combination with an apparatus for moving'switch rails comprising a motor havin two armature windings, an o er'ating cir-.

cult including the said two win ings, and a source of current, a circuit including one of the said windin s and the-said source, electro-magnetic in ication mechanism, an indication circuit'including said indication mechanism and the other one of said windings acting as generator, a controllin lever, a lever for closing said circuits, a circuit controller actuated by the apparatus for switching the 0pcrating currentcfrom both windings to one winding, an electro-magnetically actuated circuit controller and circuit therefor completed by final movement of the lever for -7 opening the said circuit through one windmg.

trol for railway switching aplparatuswhich include electric motors each nets included respectively in the two operating circuits of a motor, and a circuit controller actuated bysaid electro-magnets for' trio motor and two operating circuits, comprising an electro-magnet in series with each operating circuit, a circuit controller actuated by said magnets for opening either operating circuit and a lock actuated'b said electro-magnets for locking the contro ler in position to hold one offsaid operating circuits closed,

28. Incombination with an electrically operated railway switching or signaling apparatus comprising an electric motor and two operating. circuits, a safety a paratus comprising an electro-magnet :an circuit controller in each of' said operating circuits, means actuated by said magnets when both areenergized for opening one of said operatin circuits. or

%n testimony whereof I have signed 'my name to this s ecification in the presence of two subscribe witnesses.

JOHN D. TAYLOR.

. Witnesses:

W; L. MCDANIEL, J S. HoBsoN.

26. A safety apparatus for systems of conaving two operatlng circuits, comprlsing two electro-mag 

